Things are looking up, but not all the clouds are gone. Travel company Carnival Corp. (CCL -0.14%), best known for its portfolio of cruise ship lines, has struggled since the early days of the COVID-19 pandemic, when it fought for financial survival. As life returned to normal, people resumed booking cruises, but, like a 1,000-foot cruise ship, financial results have been slow to change course. However, the news has been improving recently, and the future is again bright for Carnival Corp. Financial results ...